With the first full day of March Madness over and the round of 64 narrowing down, Jim Cramer reviews his selections and discusses the difficulties involved with predicting the NCAA Tournament. Cramer also reveals his strategy for making his picks and says that having an upset to differentiate your bracket from most others is key. To get a look at Jim Cramer's March Madness bracket, go to: http://games.espn.go.com/tournament-challenge-bracket/2014/en/entry?entryID=28503.

President Trump's move Thursday to cancel his meeting with North Korea leader Kim Jong Un sent the stock market into a "tizzy," according to TheStreet's founder and Action Alerts PLUS Portfolio Manager Jim Cramer.